Factual error: 1947-1948 Ford Sedans and 'woody' station wagons are regularly shown, rather than earlier models - even 1940-1941 Ford vehicles. A simple Google image search will show you the difference. (The atomic bombs were dropped on Japan in 1945).

In the opening sequence, Dr Frank Winter is hitting golf balls in the desert while a radio announcer is reading off names of Americans killed in action. One name is identified by the rank of "Lance Corporal," which the US Marine Corps first adopted in 1958, long after the war. Several minutes later, Dr Winter dresses down an Army MP, referring to him as "Sergeant First Class." During WW2, that rank was actually "Technical Sergeant."